&#9834; Oh, christmas tree oh, christmas tree &#9834; the christmas tree, it's one of the most classic symbols of the season, and for many of us finding that special tree is often a family tradition. The grander the tree, the better. This little green one here, seems to need a home. We all remember that puny little tree in the charles schultz classic, a charlie brown christmas. Can't you tell a good tree from a poor tree? What kind of a tree is that? What a tree! If only charlie brown could see this, the christmas trees at this farms in new jersey. Families have been finding the perfect tree here for 100 years. It's exciting. We're getting a tree! Our family the actors is sandy, a struggling single mother who is injured and out of work, and her two kids, joseph and isabelle. Mom, look! We want this tree! That one is nice. Times are tough for this family. We can't afford this one. I'm sorry. We can't go over $25. The kids' dreams are dashed as they find out they can only afford the straggly tree. Look at this one. It's too small. It's too small, mom. And it doesn't have that many branches. But their mother can only afford the charlie brown tree. What would you do? Guys, we cannot afford those trees. We have a budget. Honey, please don't cry. I've always dreamed of a tree like that. Mom, can we get this? Joseph, we cannot buy such a big tree. Are you guys getting a big tree? I hope so. What did I tell you the budget was? I want to get it. Immediately this woman and her son are drawn to our family and they move in a bit closer. Did you get your tree? I want a big -- have isabelle start crying again. I want a big tree. There is smaller trees over there. That's what I was trying to tell them. Isabelle. Chris continues looking for her own tree until a salesman who is also working for us asks them a question. What's going on over there? They only have a budget of $25 and the kids want a bigger tree. They think they need a tree big enough for santa to come. I know. I can't even talk about it. The family walks away but chris seems concerned. She can't keep her eyes off her family. And then -- she's talking to her husband. Why don't you find out which one they like. She's telling her husband let's do it, let's do it. Excuse me, where is the tree that you had? I think he put it down over here. I'd be very happy -- you don't have to. I'd love to. It's too much money. Why would you do that? Because it's the holidays. Is this the one you guys liked? It's beautiful and I think it will look beautiful in your house. But you have to be extra special to santa and your mom, right? Are they going to get the tree? I am. The tree is $55. A beautiful tree now being wrapped up for our family. But before they leave, this dad has a special request. You have to promise me something, okay? Okay. When you have a chance to do something nice for somebody, you promise me that you will do it. Okay. Okay? Okay. You know what this is called? What is this. There is a phrase that says a small act of kindness that can have a ripple that can change the world. So we do something nice and you do something nice and you do something nice and you do something nice. You're so kind, thank you. Merry christmas. No, merry christmas to this family. You're on "what would you do." No way. My god! We wanted to see who would step in and, guys, you were awesome. Tell us what you were thinking. We were thinking that we're a very fortunate family and we saw somebody who may have needed some help. My wife had tears in her eyes and she said let's help them. Words to live by, especially during this holiday season. It happened all day long. Time and again total strangers opening their hearts and wallets for hur family. Get a bigger tree. Thank you. Oh, my god. We'll donate $40 towards your tree. Merry christmas. Oh, no you don't have to do that. I'm sorry. What if I give you $35. Why would you do that? I'd love to. Nothing prepared us for helen. She sadly recently lost her husband and she's clearly touched by our family's plight. Would you mind if I tell you something. Can you put in a bigger tree for them and I would love to buy it for them. That's really nice of you. No, it's something I really want to do. I lost my husband not too long ago and it would be something that he would love for me to do for you guys, okay? But you don't know us. It doesn't matter. It doesn't matter. So you pick something out and give them the ticket and I'll take care of it. Thank you. You're very welcome. It's my pleasure. It's from all of us. I'm not sure what to think. The kids get a beautiful tree and show it to her and thank her again. Do you want to see the tree that we picked out? Sure. I would love to. Thank you so much. A lot of beautiful things are going to happen this new year for you. I know that. How are you? Hi, how are you? I'm john quinones with "what would you do." They're actors. Are you kidding me? We wanted to know who would chip in. Get out of here. Oh, my god! I'm sorry. Are you okay? You are so kind. This is a family? Yes, we all are. We were taping the whole thing and we heard you say you lost your husband. Yes. And my husband was a very giving man and he would have wanted me to do something like this. We would have done it together if he was here. The little boy, your grandson? Yes. Did they whisper something to you? Yes. My grandson said to me you are the most wonderful person i know. It was such a beautiful thing. The christmas spirit is alive. It's alive and well. Our wish, that that giving spirit fill all our hearts for many, many seasons to come. &#9834; To brave the snow of winter time &#9834; &#9834; oh, christmas tree oh, christmas tree &#9834;

This transcript has been automatically generated and may not be 100% accurate.

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